Crankshaft pulse plate defect detection device and crankshaft pulse plate defect detection method

The invention relates to a crankshaft pulse plate defect detection device and a crankshaft pulse plate defect detection method. The crankshaft pulse plate defect detection device comprises a sensor, a data acquisition module and a control part. The sensor is used for being connected to the whole engine, an open hole is formed in the whole engine, and the sensor is used for being arranged corresponding to the open hole and matched with the pulse plate teeth in an induction mode. The data acquisition module is electrically connected with the sensor, and the data acquisition module is used for acquiring detection data of the sensor at a preset frequency. When the pulse plate teeth are deformed, lack of teeth and have interval errors, changes of time interval, amplitude and the like can be reflected on the waveform, so that defect detection of the appearance state of the crankshaft pulse plate can be carried out. The structure is simple, layout is convenient, operation is convenient, defects of the crankshaft pul